Quantum wave packet revival in two-dimensional circular quantum wells with position-dependent mass

摘要

We study quantum wave packet revivals on two-dimensional infinite circular quantum wells (CQWs) and circular quantum dots with position-dependent mass (PDM) envisaging a possible experimental realization. We consider CQWs with radially varying mass, addressing particularly the cases where M(r) proportional to r(w) with w = 1, 2, or -2. The two PDM Hamiltonians currently allowed by theory were analyzed and we were able to construct a strong theoretical argument favoring one of them. (C) 2007 Elsevier B.V. All rights reserved.